Supermicro X6DHR-8G Supplementary Manual

(Read the information listed below before using this product.)
1. For the X6DHR-8G/iG boards:
Jumpers J4F4/J4F5 (PLLSEL Select): These jumpers allow the user to select PLLSEL (Memory Speed). Make sure
that the jumper settings are set correctly according to your memory speed before you power on the system.
(*Warning!! If these jumpers are not set correctly according to your memory speed, video display failure may
occur!!!)
(*Note: the default setting is "Closed" for both jumpers to
enable DDR Memory at 333MHz. However, if your memory
speed is 266MHz, please make sure to set both jumpers
to "Open".)
J1D1 (12V 8-pin PWR) and J38 (12 V 4-pin PWR): Make sure that both PWR Connectors are used to ensure
adequate power supply to the system and the CPU.
Attention!!

Important Notice!!

J4F4/J4F5
J 3 3
DIMM 1A
DIMM 1B
J 3 4
DIMM 2A
J 1 6
DIMM 2B
DIMM 3A
DIMM 3B
DIMM 4A
J 1 4
DIMM 4B

PLLSEL Select

Jumper Settings

(J4F4/J4F5)
DDR J4F4
*333 MHz Closed Closed
266MHz Open
(*Default:Closed-333MHz)
8-Pin
4-Pin
P W C P U
PW SMB
J 3 8
J1D1
J 3 2
2 0 - P i n P W
J1B1
J P 9
P W
F A N 1
F a i l
CPU1
F A N 2
CPU2
BIOS
IPMI 2.0
S I/O
J 5
J 1 2 J 6
Force PW-On
W O R
JPA3
7 9 0 2
S C S I
S C S I
E n a b l e
JPA1 C T R L
J A 1
JBT1
CH
CLR CMOS
JP10 I n t
W O L
J D 2 JP11 J W D OH J L 1 J D 1
Alarm P W S P K
FPUSB0/1 W D
S W L E D S W
J4F5
Open
Add-X6DHR-8G-07/14/04